Added a few bench for some image filters
Review URL: https://codereview.chromium.org/14234019
git-svn-id: http://skia.googlecode.com/svn/trunk@8824 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/bench/DisplacementBench.cpp b/bench/DisplacementBench.cpp
new file mode 100644
index 0000000..32495cb
--- /dev/null
+++ b/bench/DisplacementBench.cpp
@@ -0,0 +1,171 @@
+/*
+ * Copyright 2013 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+#include "SkBenchmark.h"
+#include "SkBitmapSource.h"
+#include "SkCanvas.h"
+#include "SkDevice.h"
+#include "SkDisplacementMapEffect.h"
+
+#define FILTER_WIDTH_SMALL SkIntToScalar(32)
+#define FILTER_HEIGHT_SMALL SkIntToScalar(32)
+#define FILTER_WIDTH_LARGE SkIntToScalar(256)
+#define FILTER_HEIGHT_LARGE SkIntToScalar(256)
+
+class DisplacementBaseBench : public SkBenchmark {
+public:
+ DisplacementBaseBench(void* param, bool small) :
+ INHERITED(param), fInitialized(false), fIsSmall(small) {
+ }
+
+protected:
+ virtual void onPreDraw() SK_OVERRIDE {
+ if (!fInitialized) {
+ make_bitmap();
+ make_checkerboard();
+ fInitialized = true;
+ }
+ }
+
+ void make_bitmap() {
+ const int w = isSmall() ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE;
+ const int h = isSmall() ? FILTER_HEIGHT_LARGE : FILTER_HEIGHT_LARGE;
+ fBitmap.setConfig(SkBitmap::kARGB_8888_Config, w, h);
+ fBitmap.allocPixels();
+ SkDevice device(fBitmap);
+ SkCanvas canvas(&device);
+ canvas.clear(0x00000000);
+ SkPaint paint;
+ paint.setAntiAlias(true);
+ paint.setColor(0xFF884422);
+ paint.setTextSize(SkIntToScalar(96));
+ const char* str = "g";
+ canvas.drawText(str, strlen(str), SkIntToScalar(15), SkIntToScalar(55), paint);
+ }
+
+ void make_checkerboard() {
+ const int w = isSmall() ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE;
+ const int h = isSmall() ? FILTER_HEIGHT_LARGE : FILTER_HEIGHT_LARGE;
+ fCheckerboard.setConfig(SkBitmap::kARGB_8888_Config, w, h);
+ fCheckerboard.allocPixels();
+ SkDevice device(fCheckerboard);
+ SkCanvas canvas(&device);
+ canvas.clear(0x00000000);
+ SkPaint darkPaint;
+ darkPaint.setColor(0xFF804020);
+ SkPaint lightPaint;
+ lightPaint.setColor(0xFF244484);
+ for (int y = 0; y < h; y += 16) {
+ for (int x = 0; x < w; x += 16) {
+ canvas.save();
+ canvas.translate(SkIntToScalar(x), SkIntToScalar(y));
+ canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint);
+ canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint);
+ canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint);
+ canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint);
+ canvas.restore();
+ }
+ }
+ }
+
+ void drawClippedBitmap(SkCanvas* canvas, int x, int y, const SkPaint& paint) {
+ canvas->save();
+ canvas->clipRect(SkRect::MakeXYWH(SkIntToScalar(x), SkIntToScalar(y),
+ SkIntToScalar(fBitmap.width()), SkIntToScalar(fBitmap.height())));
+ canvas->drawBitmap(fBitmap, SkIntToScalar(x), SkIntToScalar(y), &paint);
+ canvas->restore();
+ }
+
+ inline bool isSmall() const { return fIsSmall; }
+
+ SkBitmap fBitmap, fCheckerboard;
+private:
+ bool fInitialized;
+ bool fIsSmall;
+ typedef SkBenchmark INHERITED;
+};
+
+class DisplacementZeroBench : public DisplacementBaseBench {
+public:
+ DisplacementZeroBench(void* param, bool small) : INHERITED(param, small) {
+ }
+
+protected:
+ virtual const char* onGetName() SK_OVERRIDE {
+ return isSmall() ? "displacement_zero_small" : "displacement_zero_large";
+ }
+
+ virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+ SkPaint paint;
+ SkAutoTUnref<SkImageFilter> displ(SkNEW_ARGS(SkBitmapSource, (fCheckerboard)));
+ // No displacement effect
+ paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
+ (SkDisplacementMapEffect::kR_ChannelSelectorType,
+ SkDisplacementMapEffect::kG_ChannelSelectorType, 0.0f, displ)))->unref();
+ drawClippedBitmap(canvas, 0, 0, paint);
+ }
+
+private:
+ typedef DisplacementBaseBench INHERITED;
+};
+
+class DisplacementAlphaBench : public DisplacementBaseBench {
+public:
+ DisplacementAlphaBench(void* param, bool small) : INHERITED(param, small) {
+ }
+
+protected:
+ virtual const char* onGetName() SK_OVERRIDE {
+ return isSmall() ? "displacement_alpha_small" : "displacement_alpha_large";
+ }
+
+ virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+ SkPaint paint;
+ SkAutoTUnref<SkImageFilter> displ(SkNEW_ARGS(SkBitmapSource, (fCheckerboard)));
+ // Displacement, with 1 alpha component (which isn't pre-multiplied)
+ paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
+ (SkDisplacementMapEffect::kB_ChannelSelectorType,
+ SkDisplacementMapEffect::kA_ChannelSelectorType, 16.0f, displ)))->unref();
+ drawClippedBitmap(canvas, 100, 0, paint);
+ }
+
+private:
+ typedef DisplacementBaseBench INHERITED;
+};
+
+class DisplacementFullBench : public DisplacementBaseBench {
+public:
+ DisplacementFullBench(void* param, bool small) : INHERITED(param, small) {
+ }
+
+protected:
+ virtual const char* onGetName() SK_OVERRIDE {
+ return isSmall() ? "displacement_full_small" : "displacement_full_large";
+ }
+
+ virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+ SkPaint paint;
+ SkAutoTUnref<SkImageFilter> displ(SkNEW_ARGS(SkBitmapSource, (fCheckerboard)));
+ // Displacement, with 2 non-alpha components
+ paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
+ (SkDisplacementMapEffect::kR_ChannelSelectorType,
+ SkDisplacementMapEffect::kB_ChannelSelectorType, 32.0f, displ)))->unref();
+ drawClippedBitmap(canvas, 200, 0, paint);
+ }
+
+private:
+ typedef DisplacementBaseBench INHERITED;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+
+DEF_BENCH( return new DisplacementZeroBench(p, true); )
+DEF_BENCH( return new DisplacementAlphaBench(p, true); )
+DEF_BENCH( return new DisplacementFullBench(p, true); )
+DEF_BENCH( return new DisplacementZeroBench(p, false); )
+DEF_BENCH( return new DisplacementAlphaBench(p, false); )
+DEF_BENCH( return new DisplacementFullBench(p, false); )
+